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3 years ago

7.5 is 20% of what number?

2 answers:

6 0

I use my calculator but i can tell u a trick i learned
When a question says OF then you know to multiply that so in this instance its 7.5 OF 20% now take out OF and replace it with multiplicantion sign now you have 7.5 x 20% so now you can find out what 20% is 0.20 so now plug it all in 7.5 x 0.20= 1.5
I hope this helps!

MrRissso [65]3 years ago

4 0

Well 20% is 1/5 of 100% so just multiply 7.5 by 5.
The answer is 37.5

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Find the two numbers that have a<br> difference of 3 and a sum of 27.

polet [3.4K]

12 and 15

15-12=3
15+12=27

5 0

3 years ago

Read 2 more answers

i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement how thick must the cement be to co

Sveta_85 [38]

<span>First find the area of the field
A=WL
A=(110m)(60m)
A=6,600m^2
Now turn the cm into m
becouse 100cm^3=1m^3
660,000,000cm^3=6,600,000m^3
Now find out how many times you can cover the filled
6,600,000m^3/6,600m^2=100m
So it will be 100m thick.
P.S. I'm assuming you meant you jest forgot the m for 110m.</span>

8 0

4 years ago

Prove que (a-b) x (a + b) = 2 (axb)

sergejj [24]

The answer is twentysix

6 0

3 years ago

a mint plant grows 7/8 in 1 week and 13/16 inch the next week. use a common denominator to write an equivalent fraction for each

MAVERICK [17]

Answer:

28/32 and 26/32

Step-by-step explanation:

A common denominator of 8 and 16 is 32.

7/8 = (7 * 4)/(8 * 4) = 28/32

13/16 = (13 * 2)/(16 * 2) = 26/32

Two equivalent fractions with a common denominator are 28/32 and 26/32.

4 0

4 years ago

Someone help me please!

Setler79 [48]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Average rate of change.

The average rate of change can be calculated by, finding the change of the two readings and getting a average between them.

here, for x =3 to x =5

1.) in the interval, x =3 to x = 4

the change is ==> 287 - 125 = 162

2.) in the interval, x = 4 to x=5

the change is ==> 549-287 = 262

Now the average ==> 162+262/2 ===> 212

Hence the average rate of change is 212

5 0

3 years ago